Water Pump Impeller Kit W/Key 47-89980 For Mercury 3.5 3.6 4 HP Motor Outboard

Water Pump Impeller Kit with Key for Mercury

This water pump impeller kit with key is a direct replacement for Mercury 3.5, 3.6, and 4 HP outboard motors, with OEM cross-reference number 47-89980 ensuring precise fit and reliable cooling performance.

Overview

This water pump impeller kit is designed to keep your Mercury outboard running cool by efficiently moving water through the cooling system. It is a direct fit for Mercury 3.5, 3.6, and 4 HP motors, and the included key ensures proper alignment during installation. The water pump impeller kit replaces worn impellers to prevent overheating and extend engine life.

Built For Performance

• Includes a new impeller and key for straightforward installation
• Meets OEM specifications for Mercury outboard cooling systems
• Provides consistent water flow to prevent overheating
• Constructed from durable rubber compounds for long service life
• Resists wear and distortion under high operating temperatures

Fits These Machines

• for Mercury 3.5 HP Outboard Motor
• for Mercury 3.6 HP Outboard Motor
• for Mercury 4 HP Outboard Motor

On-The-Job Use

• Replaces a worn impeller in a Mercury outboard cooling system
• Helps maintain proper engine temperature during long fishing trips
• Used in routine maintenance to prevent overheating
• Ideal for boat owners who service their own outboard motors
• Ensures dependable performance in saltwater or freshwater

Specs At A Glance

Good To Know

Q: How often should I replace the water pump impeller? A: It is generally recommended every 2-3 seasons or every 100 hours of operation, whichever comes first, to prevent overheating and engine damage.

Q: Does this kit come with everything needed for installation? A: Yes, it includes the impeller and the key, which are essential for replacing the impeller on your Mercury outboard.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.